Removable oven door and hinge assembly



Nov. 3, 1964 R. H. BARBER 3,155,033

REMOVABLE OVEN DOOR AND HINGE ASSEMBLY Filed July 22, 1963 5 Sheets-Sheet 1 $22) W g-g M INVEN TOR.

Nov. 3, 1964 R. H. BARBER 3,155,088

REMOVABLE OVEN DOOR AND HINGE ASSEMBLY Filed July 22, 1963 5 Sheets-Sheet 2 INVENTOR.

lbyfhigyfiarbei Nov. 3, 1964 R. H. BARBER REMOVABLE OVEN DOOR AND HINGE ASSEMBLY 3 Sheets-Sheet 5 Filed July 22, 1963 INVENTOR.

United States Patent 3,155,??83 REIVIGVABLE GJEN D0912 AND GE ASSEMBLY Roy Hailey Ear-her, Qleveland, Tenn, assignor to Ilm'dwick Stove Company, Cleveland, Tenn, a corporation of Belaware Filed duly 22, 1263, No. 2%,523 8 Saints. (6i. 12i191) This invention relates to removable door structures and more particularly to a removable oven door for gas and electric ranges and an improved hinge assembly for the door.

More particularly, this invention relates to oven doors which open down from the top and are hinged near the bottom of the door.

One of the main objects of the present invention is to facilitate opening of the oven door and to provide for removal of the door from the range in a simple and improved manner, more particularly when the door is in partially open position, for example, at approximately a 15 degree angle to the vertical by merely grasping the door with two hands and lifting up at the aforestated angle to a point where a hinge holder disengages a hinge assembly guide.

Another object is to provide for quick and simple removal of the oven door from gas and electric cooking ranges and where n the removal of the door facilitates cleaning of the oven and the door.

Another object is to provide a hinge assembly guide pivoted on the structure of the range, a door having a hinge holder for sliding engagement with the hinge assembly guide for removably mounting the door on the hinge assembly guide and for swinging of the door about the pivoting of the hinge assembly guide on the structure, a hinge roller, a hinge member pivoted to the hinge assembly guide and cooperating with the roller, a notch in the portion of the hinge member which cooperates with the roller, and a spring yieldingly urging the hinge member into cooperation with the roller, which spring when the notch in the hinge member is positioned on the roller acts to release the door for withdrawal from the hinge assembly guide.

Another object is to provide the hinge member with a locking lug for engagement in a slot in the hinge holder to lock the door against removal from t. e hinge assembly guide except when the notch is positioned on the roller, and wherein when the notch is positioned on the roller the spring causes the hinge member to pivot about its pivot on the hinge assembly guide to release the locking lug from the slot in the hinge holder for convenient removal of the door from the hinge assembly guide.

Another and more specific object is to provide a hinge support which is secured to the structure of the range and which hinge support carries the roller and has an arm to which the hinge assembly guide is pivoted.

Further objects and advantages of the invention will be apparent from the following detailed description taken in connection with the accompanying drawings, it being understood that the invention is limited only within the 3,l55,98 Fatented Nov. 3, 1964 ice FIGURE 3 is a perspective view of the hinge holder; FIGURE 4 is a fragmentary perspective view showing the structure of FIGURE 2 as applied to the front frame of the range structure which defines the opening for the oven compartment and further shows the oven door in dotted lines and the hinge holder secured to the oven door as applied to the hinge assembly guide;

FIGURE 5 is a side view of the hinge assembly guide; FIGURE 6 is a top view of the hinge assembly guide; FIGURE 7 is a front view of the hinge assembly guide; FIGURE 8 is a side view of the hinge member; FIGURE 9 is a front view of the hinge member; FIGURE 10 is a front view of the hinge holder; FIGURE 11 is a top view of the hinge holder; FIGURE 12 is a side view of the hinge holder; FIGURE 13 is a side view of the hinge support; FIGURE 14 is a top view of the hinge support; FIGURE 15 is a back view of the hinge support; FIGURE 16 is a side view of the hinge roller; and FIGURE 17 is an end view of the hinge roller. Referring to the drawings, the range 10 shown in FIGURE 1 has an oven compartment or cavity 11 and as shown in FIGURE 4 the oven compartment 11 has a rectangular front opening 12' defined by a front frame 14 extending, for example, from the side wall 15 of the range structure and flanged inwardly at the opening 12 as inscope of the appended claims and not to the particular embodiment selected for illustration.

In the drawings:

FIGURE 1 is a side view of one form of range having a removable oven door and hingeassembly embodying the present invention;

FIGURE 2 is a perspective view showing the hinge support, the hinge roller carriedthereby, the hinge assembly guide pivoted on an arm of the hinge support, the hinge member and the spring which yieldingly urges the hinge member into cooperation with the roller;

dicated at In.

The oven door 17 shown in dotted lines in FIGURE 4 opens down from the top and is hinged near the bottom of the door. The door 17 has an inner panel 18, an outer panel 19, and side or end walls 20.

A hinge support 21 is positioned within the front frame 14 and welded or otherwise secured, for example, along its surfaces 22 to the inner side .of the front frame 14. The hinge support 21 has a flange 23 positioned generally parallel to the plane of swinging movement of the door 17. A member 24 welded or otherwise secured to the hinge support 21 at 25 has a flange 26 spaced from and generally parallel to the flange 23. A hinge roller 28 is journalled for rotation between the flanges 23 and 26 on a pin 29.

The hinge support 21 also has a lug or arm 3!? which extends between spaced portions 32 and 33 of a hinge assembly guide 34 and the spaced portions 32 and 33 of the hinge assembly guide 34 are pivoted at 35 near their lower ends to the lug or arm 30 of the hinge support 21. The upper end of the spaced portion 32 is olfset into fiat contact with the upper end of the spaced portion 33 and is welded or otherwise secured thereto at 36.

A hinge member 38 extends between the spacedportions 32 and 33 of the hinge assembly guide 34 and is pivoted to the hinge assembly guide on a pin 40. The hinge assembly guide 34 has opposite guiding edges 42.

The hinge member 38 has an arcuate portion 43 projecting from one guide edge 42 and inwardly through a vertically elongated slot shown in dotted lines at 4'5 in the front frame 14 in FIGURE 4. The lug of arm 30 of the hinge support 21 also projects outwardly through the slot 45. The hinge member 38 has a lower arcuate edge 46 "provided with a notch 47. A tension spring 48 coacts with the hinge member 38 at 49 andyielding'ly urges the .arcuate edge 46 into cooperation with the roller 28. The other end of the spring 48 is anchored at a suitable location within the range structure as shown, for example, at 50 in FIGURE 1. Y

The hinge member 38 has an arm 52 disposed between form and has its base welded or otherwise secured to the inside of the adjacent side or end wall of the door 17. The lug 54 is engageable in a locking slot 57 in the flange 58 of the hinge holder 5% to lock the door against removal from the hinge assembly guide 34 except when the notch'di in the edge 46 of the hinge member 38 is positioned on the roller 28 as will presently appear.

The notch in the hinge member 38 in which the spring 48 coacts with the hinge member 38is marked 6% in the drawings. The other flange of the hinge holder 56 is indicated at 62. In FIGURES 5 and 6 the openings near the lower ends of the spaced portions 32 and 33 of the hinge assembly guide 34 in which the pin 35 is disposed are indicated at 64. The offset upper end of the spaced portion 32 of the hinge assembly guide 34 is indicated at 65 in FIGURE 7.

Secured within the hinge holder 56 as shown in FIG- URES 10, 11 and 12 is a member 68 through the side adjacent the flange 58 and the flange 58 the locking slot 57 extends. The flange 62 of the hinge holder 56 and the adjacent wall of the member 68 have a slot 70 disposed longitudinally and opening from the bottom of the hinge holder 56 and member 68 as shown in FIGURE 10. In applying the door and the hinge holder 56 carried thereby to the hinge assembly guide 34 the hinge holder 56 slides over the hinge assembly guide 34 with the flanges 58 and 62 sliding along the guide edges 42 of the hinge holder guide 34 and the slot 76 passes over the hinge member 38.

The member 63 has a flange 72 at its upper end. In sliding the door 17 and the hinge holder 56 into place on the hinge assembly guide 34 the flange 72 cooperates with the upper end of the hinge assembly guide 34- and limits the downward movement of the door 17 and binge holder 56 onto the hinge assembly guide 34.

In FIGURE 13 the opening in the arm of the hinge support 21 for the pivot pin 35 is indicated at 74. In FIGURE 8 the opening in the hinge member 38 for the pin 40 is indicated at 75. In FIGURES 13 and 15 the openings in the hinge support for the pin 29 on which the hinge roller 28 is journalled for rotation are indicated at 75. The lower inner edges of the flanges 58 and 62 of the hinge holder 56 are shown at a degree angle at 78 in FIGURE IO.

With the door 17 and hinge holder 56 in place on the hinge assembly guide 34 as shown in FIGURE 4, removal of the door 17 may be accomplished in a simple and convenient manner as follows: the door 17 is swung to an approximate 15 degree angle from vertical or to a broil position in which the hinge assembly guide 34- is positioned in FIGURE 2. In this swinging movement the door 17 pivots on the pivot pin 35 and as shown in FIGURE 2 the hinge roller 28 is located at the notch 47 in the lower arcuate edge 46 of the hinge member 38.

The location of the hinge roller 28 at the notch 47 causes a rigid stop due to the vertical downward force of the spring 48. The spring 48 causes the hinge member 38 to pivot about the pin 40 as the notch 47 positions on the roller 28. This disengages the locking lug 54 from the slot 57 in the hinge holder 56 which is secured to the door lining. The hinge holder 56 secured to the door lining will now pass or slide along the guide edges 42 until contact ceases and the door 17 is released from the range. With the door at approximately a 15 degree angle to the vertical, or other desired angle where the roller 28 is at the notch 47, the door is removed .simply and conveniently by merely grasping the door with two hands and lifting up at the aforestated angle to a point where the hinge holder 56 disengages the hinge assembly guide 34.

The door 17 and its hinge holder 56 is replaced in a simple and convenient manner by a reverse procedure. In other words, the hinge assembly guide 34 is positioned as shown in FIGURE 2 with the roller 28 at the notch 47 in the lower arcuate edge 46 of the hinge member 33.

The door 17 which has an opening is positioned over the upper end of the hinge assembly guide 34 and the hinge holder 56 is passed or moved slidingly downwardly over the hinge assembly guide 34 along the guide edges 42 until the flange *72 engages the upper end of the hinge assembly guide 34.

In the aforementioned position the door 17 is in place on the hinge assembly guide 34 and any movement of the door about the pivot 35 from position with the roller 28 at the notch 47 will cause the arcuate edge 46 of the hinge member to be pressed yieldingly into cooperation with the roller 28 by the spring 48. This causes the hinge member 38 to pivot about the pin 40 to engage the hinge holder locking lug 54 in the locking slot 57 in the hinge holder 56. This locks the door 17 and its hinge holder 56 against removal from the hinge assembly guide 34 except when the notch 47 in the hinge member 38 is at the roller 28 as previously described.

The embodiment of the invention disclosed in the drawings and the specification is for illustrative purposes only, and it is to be expressly understood that said drawings and the specification are not to be construed as a definition of the limits or scope of the invention, reference being had to the appended claims for that purpose.

I claim:

1. In combination, a structure defining an oven compartment with a front opening, an oven door for said opening, a hinge support carried by said structure, a hinge assembly guide having spaced portions and pivoted near its lower end on said hinge support, a hinge roller carried by said structure, a hinge member pivoted between said spaced portions of said hinge assembly guide and having an arcuate edge with a notched portion, a spring coacting with said hinge member and yieldingly urging the arcuate edge of said hinge member into cooperation with said roller, a generally channel shaped hinge holder secured to said door and slideable over said hinge assembly guide and having a locking slot therein, and a locking lug rigid with said hinge member and engageable in said locking slot to lock the door against removal from said hinge assembly guide, movement of said door about the hinge support for said hinge assembly guide to position where the notched portion of said arcuate edge oi said hinge member is presented to said roller causing said spring to pivot said hinge member about its pivot between the spaced portions of the hinge assembly guide to release the locking lug on said hinge member from said locking slot for removal of the door from said hinge assembly guide.

2. The combination according to claim 1, wherein the notched portion of the arcuate edge of said hinge member is presented to the roller when the door is swung to a partially open position.

3. The combination according to claim 1, wherein the hinge roller is journaled for rotation on a pin carried by a hinge support secured to the inner side of the front frame of the structure defining the oven compartment and the hinge support includes an arm on said hinge support.

4. The combination according to claim 1, wherein the hinge member has an upwardly elongated integral arm at one end for positioning between the spaced portions of the hinge assembly guide, the locking lug being integral with said arm and the pivoting of said hinge member between the spaced portions of the hinge assembly guide being at the lower end of said upwardly elongated arm. 5. The combination according to claim 1, wherein the inner wall of the generally channel shaped hinge holder has a slot disposed longitudinally and opening from the bottom of the hinge holder for passage over the hinge member in applying the door and hinge holder to the hinge assembly guide and through which the hinge member extends for cooperation of its notched arcuate edge with the hinge roller.

6. The cornbinationaccording to claim 1, wherein the areaoss generally channel shaped hinge holder has a flange for cooperation with the upper end of the hinge assembly guide for limiting downward movement of the door onto the hinge assembly guide.

7. The combination according to claim 1, wherein the hinge member has an arcuate portion projecting from said hinge assembly guide and through a vertically elongated slot in a front frame of the structure, and wherein the lower edge of said arcuate portion constitutes the arcuate edge with the notched portion which cooperates with the roller.

8. In combination, a structure comprising an oven compartment with a front opening defined by a front frame, a hinge support positioned Within and secured to the inner side of said front frame, a member on said hinge support having a flange spaced from a flange on said hinge support, a hinge roller journaled for rotation between said flanges on a pin, an oven door for said front opening of said structure, a hinge assembly guide having spaced portions and pivoted near its lower end on an arm on'said hinge support, a hinge member pivoted between the spaced portions of said hinge assembly guide and having an arcuate portion projecting from said hinge assembly guide with an arcuate lower edge having a notched portion, a spring cooperating with said hinge member and yieldingly urging the arcuate lower edge of said hinge member into cooperation with said roller, a generally channel shaped hinge holder secured to said door and slideable over said hinge assembly guide and having a locking slot therein, and a locking lug rigid with said hinge member and engageable in said locking slot to lock the door against removal from said hinge assembly guide, movement of said door about the hinge support for said hinge assembly guide to position where the notched portion of said arcuate edge of said hinge member is presented to said roller causing said spring to pivot said hinge member about its pivot between the spaced portions of the hinge assembly guide to release the locking lug on said hinge member from said locking slot for removal of the door from said hinge assembly guide.

References Cited by the Examiner UNITED STATES PATENTS 3,004,495 10/61 Coultrip 126 194 3,090,375 5/63 Nelson "126-194 3,114,364 12/63 Cullen etal. 126-191 JAMES W. WESTHAVER, Primary Examiner. K. W. SPRAGUE, Examiner. 

1. IN COMBINATION, A STRUCTURE DEFINING AN OVEN COMPARTMENT WITH A FRONT OPENING, AN OVEN DOOR FOR SAID OPENING, A HINGE SUPPORT CARRIED BY SAID STRUCTURE, A HINGE ASSEMBLY GUIDE HAVING SPACED PORTIONS AND PIVOTED NEAR ITS LOWER END ON SAID HINGE SUPPORT, A HINGE ROLLER CARRIED BY SAID STRUCTURE, A HINGE MEMBER PIVOTED BETWEEN SAID SPACED PORTIONS OF SAID HINGE ASSEMBLY GUIDE AND HAVING AN ARCUATE EDGE WITH A NOTCHED PORTION, A SPRING COACTING WITH SAID HINGE MEMBER AND YIELDINGLY URGING THE ARCUATE EDGE OF SAID HINGE MEMBER INTO COOPERATION WITH SAID ROLLER, A GENERALLY CHANNEL SHAPED HINGE HOLDER SECURED TO SAID DOOR AND SLIDEABLE OVER SAID HINGE ASSEMBLY GUIDE AND HAVING A LOCKING SLOT THEREIN, AND A LOCKING LUG RIGID WITH SAID HINGE MEMBER AND ENGAGEABLE IN SAID LOCKING SLOT TO LOCK THE DOOR AGAINST REMOVAL FROM SAID HINGE ASSEMBLY GUIDE, MOVEMENT OF SAID DOOR ABOUT THE HINGE SUPPORT FOR SAID HINGE ASSEMBLY GUIDE TO POSITION WHERE THE NOTCHED PORTION OF SAID ARCUATE EDGE OF SAID HINGE MEMBER IS PRESENTED TO SAID ROLLER CAUSING SAID SPRING TO PIVOT SAID HINGE MEMBER ABOUT ITS PIVOT BETWEEN THE SPACED PORTIONS OF THE HINGE ASSEMBLY GUIDE TO RELEASE THE LOCKING LUG ON SAID HINGE MEMBER FROM SAID LOCKING SLOT FOR REMOVAL OF THE DOOR FROM SAID HINGE ASSEMBLY GUIDE. 